1 The chapter division which was not a part of the original text but was added in the middle ages obscures the fact that there is no new speech here. The division may have resulted from the faulty identification of the “them” in the preceding verse. See the translator’s note on that verse.
2 The adjective “stone-hard” is not in the Hebrew text. It is implicit in the metaphor and is supplied in the translation for clarity. Cf. Ezek 11:19; 36:26; and Job 19:24 for the figure.
3 Heb “adamant.” The word “diamond” is an accommodation to modern times. There is no evidence that diamond was known in ancient times. This hard stone (perhaps emery) became metaphorical for hardness; see Ezek 3:9 and Zech 7:12. For discussion see W. E. Staples, “Adamant,” 1:45.
4 This verse has been restructured for the sake of the English poetry: Heb “The sin of Judah is engraved [or written] with an iron pen, inscribed with a point of a diamond [or adamant] upon the tablet of their hearts and on the horns of their altars.” There is biting sarcasm involved in the use of the figures here. The law was inscribed on the tablets of stone by the “finger” of God (Exod 31:18; 32:16). Later under the new covenant it would be written on their hearts (Jer 31:33). Blood was to be applied to the horns of the altar in offering the sin offering (cf., e.g., Lev 4:7, 18, 25, 20) and on the bronze altar to cleanse it from sin on the Day of Atonement (Lev 16:18). Here their sins are engraved (permanently written, cf. Job 19:24) on their hearts (i.e., control their thoughts and actions) and on their altars (permanently polluting them).
5 It is difficult to convey in good English style the connection between this verse and the preceding. The text does not have a finite verb but a temporal preposition with an infinitive: Heb “while their children remember their altars …” It is also difficult to translate the verb “literally.” (i.e., what does “remember” their altars mean?). Hence it has been rendered “always think about.” Another possibility would be “have their altars … on their minds.” There is possibly a sarcastic irony involved here as well. The Israelites were to remember the Lord and what he had done and were to commemorate certain days, e.g., the Passover and the Sabbath which recalled their deliverance. Instead they resorted to the pagan altars and kept them in mind.
6 This reading follows many Hebrew and ancient versions. Many other Hebrew read “your” [masc. ].
7 Sacred poles dedicated to … Asherah. A leading deity of the Canaanite pantheon was Asherah, wife/sister of El and goddess of fertility. She was commonly worshiped at shrines in or near groves of evergreen trees, or, failing that, at places marked by wooden poles (Hebrew אֲשֵׁרִים [’asherim], plural). They were to be burned or cut down (Deut 7:5; 12:3; 16:21; Judg 6:25, 28, 30; 2 Kgs 18:4).

In other versions

ESVEnglish Standard Version

“The sin of Judah is written with a pen of iron; with a point of diamond it is engraved on the tablet of their heart, and on the horns of their altars, while their children remember their altars and their Asherim, beside every green tree and on the high hills,

NIVNew International Version (2011)

“Judah’s sin is engraved with an iron tool,

inscribed with a flint point,

on the tablets of their hearts

and on the horns of their altars.

Even their children remember

their altars and Asherah poles

beside the spreading trees

and on the high hills.

CSBChristian Standard Bible

The sin of Judah is inscribed

with an iron stylus.

With a diamond point

it is engraved on the tablet of their hearts

and on the horns of their altars,

while their children remember their altars

and their Asherah poles, by the green trees

on the high hills—

NLTNew Living Translation

“The sin of Judah

is inscribed with an iron chisel—

engraved with a diamond point on their stony hearts

and on the corners of their altars.

Even their children go to worship

at their pagan altars and Asherah poles,

beneath every green tree

and on every high hill.

LEBThe Lexham English Bible

“The sin of Judah is written with an iron stylus,

with a point of diamond it is engraved

on the tablet of their heart,

and on the horns of their altars.

As the remembering of their children,

so is the remembering of their altars

and their poles of Asherah worship

beside the leafy trees on the high hills.

KJV 1900King James Version

The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven upon the table of their heart, and upon the horns of your altars; Whilst their children remember their altars and their groves by the green trees upon the high hills.

Public Domain